Machine for setting or forming scraper-blades.



JESSE B. SMITH, OF ALEXANDER orrY, ALABAMA.

MACHINE FOR SETTING OR FORMING SCRAPER-BLADES.

SPECIFICATION forming part of Letters Patent No. 645,022, dated March 6, 1900.

Application filed OctoberlS, 1899. Serial No. 734,003. (No model.)

To all whom it may concern:

Be it known that I, JESSE B. SMITH, a citizen of the United States, residing at Alexander City, in the county of Tallapoosa and State of Alabama, have invented certain new and useful Improvements in Scraper-Setting Ma chines or Presses; and I do hereby declare the followingto be afull, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertaius to make and use the same- My invention relates to machines for setting or forming scraper-blades for agricultural implements. These blades are usually made of wrought or malleable metal, and in order that they may be formed to the exact shape of the plow or cultivator upon which they are to be placed they must be made to conform to the seat or recess upon the cast-metal point of the plow or cultivator.

My machine is designed to give the exact set or formation to the blade of the scraper that will fit it to implements of any given size or manufacture.

The objects sought to be attained are to produce a machine for this purpose which shall be comparatively simple in construction, strong, and durable, which may be quickly operated to set or form the shape of the blade or scraper, and which shall at the same time facilitate the feeding of the blanks between the dies to be molded or formed, as well as render easythe removal of the completed blade or scraper after it has been formed or set to the required pattern. I attain the objects and advantages recited by means of the construction shown in the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a rear elevation of my machine or press. Fig. 2 is a vertical section taken centrally through my machine or press. Fig. 3 is a perspective view of the upper or female die of my machine or press. Fig. 1 is a perspective view of the anvil or male die of my machine or press. Fig. 5 is a perspective view of the scraper-blade blank before it has been formed or set by my machine or press. Fig. 6 is a like view of the scraper-blade after it has been set or formed to the required shape by my machine or press, and Fig. 7 is a view in perspective of an adjustable guide which I may use for the purpose of varying the contour of the outer ends of the scraperblades.

Like figures of reference indicate like parts wherever they occur in the various views of the drawings.

1 is the anvil or male die, which is provided with feet 2 2 2 2 on either side, front, and rear. Bolt-holes 3 3 3 3'a're formed in these feet 2 2 2 2 for the purpose of securing the machine or press rigidly in place upon a bench or other suitable support. The anvil 1 is provided with a central stud 4, designed for the purpose of centering the blank scraperblade 15 when it is placed'i'n the machine for the purpose of being set or formed, said stud 1 fittinginto a bolt-hole 5,formed in the scraperblank. The face of the anvil or male die 1 is formed to the required shape to give the desired angular set or contour to the blade and may be varied within certain limits.

Thefemale die 6 is provided with a stud 7, which projects from its upper portion. Ears or lugs 8 8 project outward laterally from the sides of the stud 7, Fig. 3. The operative face of the female die 6 is a counterpart of the face of the anvil or male die 1 and is provided with a hole or aperture 9 to accommodate the centering-stud 4. The female die 6 is mounted in any suitable manner to'slide Within the upright guides 10 10. An operating-lever 11, provided with two earns 12 12, is mounted between the guides 10 lOfor raising and lowering the female die 6. Cam-grooves 13, Fig. 2, are formed upon the inner faces of cams 12 12, and seated within these grooves are the ears or lugs 8 8 on the female die 6. These cams are pivoted at 14. to the guides 10 10.

When it is desired to set or form a scraperblade, the blank15, Fig. 5, is placed upon the anvil 1, the stud 4 entering the bolt-hole 5 in theblank. In this way the blank 15 is formed to approximate the shape or contour of the finished blade 16, Fig. 6, when the lever 11 is the sides of the anvil 1. Two of these adjustable guides are used, one being placed at each end of the anvil (on the sides) and secured by nuts and washers to hold them adjusted at any point within the limit of the slot 20 to force the ends of the scraper-blade far ther forward and create a greater angle between them--that is, make the two sides 17 17] changed to conform to some other pattern.

What I claim is I 1. A machine for forming, or setting, scraper-blades, consisting of an anvil, having 'a stud projecting from the face thereof; a

sliding female die, having ears, or lugs, pro jecting laterally therefrom; an operating-lei ver, provided with cams, and cam-grooves on the inner faces of said cams to accommodate the ears or lugs on the female die, said lever being pivoted to a guideway within which the female die slides, substantially as described. 2. In a machine of the class described, a rigid anvil or die a sliding female die, mounted to move toward and from the anvil with in a guideway, and an adjustable guide, or former, designed to be secured at the sides of the anvil in adjusted position to vary the contour,0r shape, of the ends of the scraper-blade, substantially as described. 3. In a machine of the class described, th anvil, '1, within the guides, 10, 10; the female die, 6, mounted to slide within said guides;

cam-lever, 11, 12, for moving the female die from and toward the anvil; the stud, 4, on the anvil, and the aperture, 9, in the female die, substantially as described.

In testimony whereof I do affix my signature in presence of two witnesses.

JESSE B. SMITH. Witnesses:

A. J. OoLEY, I. T. ADCOOK. 

